Wheel-tire.



B. DAHL.

WHEEL TIRE. PPLIOAT-XON ULEB MAY a, 1908. l

Patented May 31, 1910.

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t mi TED STATES PATENT oEEroE.v

BENJAMIN DAI-IL, OF MINNEAPOLIS, MINNESOTA, ASSIGNORTO DA1-IL PUNCTURELESS TIRE COMPANY, OF MINNEAPOLIS, MINNESOTA.l

WHEEL-'TIRE Specification of Letters Patent.

Patented May 31.19115.

Applicationiled May 8, 1908. Serial No. 431,680.

Minneapolis, Hennepin county, Minnesota,

have invented certain new and useful Improvenients in lVheel-TiresI` of which the following is a'specification.

My invention relates to tires designed pan ticularly for use on automobiles .andother vehicles, and the object of they invention is to provide a tire having the necessary resiliency for easy riding, and at the same time p'uncture-proof.

A' further object is to provide a tire of a non-pneumatic characterand one which will be comparatively inexpensive to manufac ture and maintain.

' My invention, consists generally in an outer tire casing and a filler therefor of resilient material, and `means for clamping the casing around said filler. and compressing one portion thereof to causeanother portion to bulge or be forced o'gtwardly.

Further. the invention consists generally in lvarious constructions and combinations,

all as hereinafter described and particularly pointed out in the claims.

In the accompanying drawings, forming part of this specification, Figure l is a detail view of a portion of a wheel tire and telly embodying my invention. Fig. is a transverse sectional view illustrating the outer casing in its released or unclamped position. Fig. 3 is a similar view illustrating the outer casing drawn in snugly around the filler to clamp the inner portion thereof and expand the outer portion. Fig. 4 is a detail sectional view illustrating the application of the invention to a tire of the clencher type.

In the drawing, 2 represents a wheel felly, S'the spo-kes therefor and 4 the outer casing of the tire. Generally an inner tube used with this style of casing and inflated' to forni the pneumatic tire. The inner tubes are hable tol puncture however, cannot be easily mended on the road and must be kept in an inflated condition to obtain the de- '5 made of a suitable composition that is compressible, elastic and possesesJ-esiliencyto a considera-ble degree. This filler extends entirely around the felly within the casing 4, being somewhatnarrower than the space between the edges of the outer casing, as indicated in Fig. Q. lVhen the edges of the casing are drawn together the fillet.' will be compressed near the felly and will bulge out at 'another point against the casing, and as the pressure increases the bulging tendency of the filler will increase correspondingly, until it completely fills the casing, bearing on all points thereof and supporting the same and yielding sufciently under pressure to allow the tire to roll over' rough or uneven roads without transmitting the jar to the ruiming gear of the vehicle.

Various means maly be devised for draw-v ing together the edges of the outer casing 4, and I do not wish to be confined to any pan ticular mechanism employed for this purpose. I have shown in the drawings7 however, a compressing means which will perform the desired function and Awill be coniparatively simple and inexpensive to manu- 1 facture. This means consists of rings 6 arrangedv on each side of the casing 4 and having flanges 'I' provided with recesses 8 to receive hooks 9 on the outer ends of tubes 10. These tubes are slidable in sockets l1 provided in the wheel felly and are interior-ly threaded and adapted to 'engage right and left hand threads provided on a pin l2 which extends transversely ot' the felly con- 'necting the tubes 10, 4and has squared ends A.pression at the point where the edges of the casing engage' and squeeze the filler. rl`his compression is continued unt-il the d esned pressure of the fillerfon the casingvls obtained. p

In Fig. 4 -the device is adapted f or a clencher form of tire, the filler 14 having a 4 rounded inner surface contiguous to the felly that is engaged bythe edges -15 of the tire casing. Rings 1G have flanges 17 to engage the edges l5 of the outer casing and lugs 18 are mounted on said rings and have threaded ioo left hand threads thereon, the outer ends oi? said pin being mounted in a ring 2O secured to the fell 2. rlhese outer ends are squared to fit a suitable key as described With reference to Figs. 2 and 3. The edges of the cas` ing Will be drawn in in lthe same manner as previously described and the effect 4will be to compress the inner portion of the iiiler and expand its outer portion.

This invention is applicable to any form of detachable tire using an outer casing, Wili dispense with all annoyance incidentai to the puncturing of pneumatic tires and will greatly reduce the time required in caring tor such tires and the expense of maintaining them.

I claim as my invention:

l. The combination, with a Wheel feiiy having transverse sockets therein, or" a nonpneumatic tire comprising an outer casing and a filler therefor composed of yielding,

resilient material, interiorly threaded tubes itting within, said transverse sockets and sl'idable therein and having hooks on their outer ends, rings having flanges providedV With recesses to receive said hooks, said rings being arranged on each side of the casing and engagingfthe same, and pinslhaving right and left hand threads thereon engaging the. threads of'said tubes by means of which said rings can be drawn together and said filler compressed.

2; The combination, with a Wheei :teiiv having transverse sockets therein, of? i" riorly' threaded tubes fitting i. sockets and siidable therein and i V' d hooks at their outer end, pins having right and left hand threads thereon iitting Within'saidtubes and engaging the threads thereof, 'an outer casing, a filler of resilient nested with s materiel incosed by said casing, rings proen each side oi said casing and enthe saine, and said rings being adapt "e eng'agd by the hooks on said tubes, Lee et' compression of said easing on 4silient material being regulated by (f i eins and reiativ "fon, with a t* therein, of said sockets having threads., an outer casing, a thereby and composed oi' resii. t; ei rin'gs Vprovided on each side oi said casing and having means to engage the edges of the' vided on each side of said easing and having ianges to engage the same, and edges which are adapted to pass between said iiiler and said ieily, said rings being :freely movable to- Ward and from one another until the desired degree ci compression is obtained on said filler, pins having right and left hand threads thereon and sockets therefor con- 'd rings, the ends of said pins being adapted to receive an operating wrench or key, substantially as described.

" rtness whereof, i have hereunto set d this Lith f y. oi3 liiay i908.

SENJJLN DAHL. 

